The sky seems to be blue from the Earth. Why is it so?

Question

so now i realy think that (keithmanley2000) and twice next to him are partly right.

Answer 1

The main reason light from the sky is blue is Rayleigh scattering (named after Lord Rayleigh), which is the scattering of light, or other electromagnetic radiation, by particles much smaller than the wavelength of the light. It occurs when light travels in transparent solids and liquids, but is most prominently seen in gases.

Answer 2

The atmoshere of the earth filters out sufficient amounts of the ultraviolet rays of the sun and the white light that it allows humans to percieve a color on the spectrum resembling the blue skys you see. Ever notice with environmental changes the sky will take on different hues or shades of blue and the blue dims to gray as the sun subsides or rotates out of sight on the horizon. As the amounts of light or quantaties increase or decrease the hues or shades of blue we see change also. If the atmosphere were to be that of such it filtered out the blue light part of the spectrum opposite of what we see, the sky would look white. If that took place what color would the clouds be, would they still be white?

Answer 3

good grief


blue light is refracted more than the other colours so blue light that would have been heading for norway is refracted down onto our heads here in the uk, while the rest keeps on going.

also, other colours (reds and greens) are filtered more by the upper atmosphere.

it is nothing - I REPEAT, NOTHING TO DO WITH A REFLECTION OF THE OCEAN

Answer 4

Our air (which we take a breath with) contains many gases have their index bias. The value index bias 1 is only in ether. Remember our air is encapsulated with several layer of the atmospheres. And atmosphere itself also has index bias value, but not 1.

Answer 5

if a atoms radius is 1\10 th the wavelength of the light incident it will scatter the light. nitrogen and oxygen have 1\10 radius of frequency of blue light so they scatter the blue part of the sunlight

Answer 6

The light rays are reflected/refracted by the dust in he sky, blue light is refected the most. THATS THE SIMPLE ANSWER!

Answer 7

i agree with barbiegirl
check out this link for more info.
http://math.ucr.edu/home/baez/physics/General/BlueSky/blue_sky.html

edit: n i think andyman n frogdog n the others too (except the ocean reflecting part though it seems a common sense answer,, but is the ocean also actually blue?)

Answer 8

Our atmosphere absorbs all but the blue light.

Answer 9

I'm not EXACTLY sure, but i believe the ocean reflects off the atmosphere

Answer 10

sun light returning from the earth